Hi all. I was not really interested in AR's till recently. I'd Like to build one as cheap as possible, from an 80% lower.
I have a Micro mill which I am currently scratch building a tube gun based on a Sten and M3 grese gun/ AK47 with a little Tec 9 thrown in for garnish
So where would be the cheapest for the lower and the FCG. Also what are the differences on lowers? I mean like, a2 a4 and so on, does this mean any lower can go on any upper? Or that means they are not 100% compatible? I had the theory, build one as cheap as possible now so if laws change I can still dress it out later as it would be most likely still legal to change out accessories. And MABEY if I ever got the funds, purchase a 50 upper.
I have plenty mechanical ability, access to very elaborate machine shop, and a ton of experience with AK based firearms with a few builds under the belt. I basically just need the instructions to a build and a list of required tooling. I personally don't need the jig thing I have seen, as I am fairly decent at measuring, set up and layout, is it actually required?
I also hear of a rear tapped hole or something to that nature, what kind of tap is it? I am pretty sure I have one in every size imaginable, as for drills I have all letter, number and fraction up to 3/4, and access at school to any thing up to 3 inch and reamers to boot.
Sorry for so many questions, just like my AK obsession, there is so much info its hart to wade the shit. So to speak Thanks all, Mike